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This post is 5 years old!! Probably resolved by nowthewofoz wrote:Canadian law does not allow for adult Brother/Sister sponsorship and only for minors when you can prove that they are dependents of you.
They may be able to get point for adaptability because they have family in Canada under the Skilled worker program. Also, you may sponsor your parents and they can sponsor a son.
There is no minimum amount of time a person need to be in Canada in order to qualify as a sponsor. Nor need to be a Canadian citizen